US133310A - Improvement in pivot-stools - Google Patents
Improvement in pivot-stools Download PDFInfo
- Publication number
- US133310A US133310A US133310DA US133310A US 133310 A US133310 A US 133310A US 133310D A US133310D A US 133310DA US 133310 A US133310 A US 133310A
- Authority
- US
- United States
- Prior art keywords
- pivot
- stools
- improvement
- earl
- lug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 101710026556 Clec2e Proteins 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/18—Chairs or stools with rotatable seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
Definitions
- Figure 1 represents a vertical central section of my improved pivot-stool.
- Fig. 2 is a top view of the supporting-post.
- Fig. 3 is an inverted plan View of the pivot and seat.
- This invention has for its object to lock the seats of pivot-stools to the supporting-posts in suchlnanner that they can freely revolve but not be spontaneously detached.
- the invention consists in forming a projecting lug on the upper end of the pivot and a notched inner flange on ,the upper end of the hollow post, so that when the lug has, through the notch, been brought under the flange the seat cannot be lifted off the pivot.
- the lug under the flange holds the I seat down and prevents it frombeing accidentally lifted off the post, allowing it, however, to be turned as freely as before.
Description
" H. EARL, Jr. Pivot Stools.
UNITED STATES PATENT OFFICE.
HUGH EARL, JR, OF NEW .YORK, N. Y., ASSIGNOR TO FLETCHER W. DICK- ERMAN, OF SAME PLACE.
IMPROVEMENT in PIVOT-STOOLS,
Specification forming part of Letters Patent No. 133,310, dated November 25, 1872,
To all whom it may concerm Be it known that I, HUGH EARL, Jr., of New York city, in the county and State of New York, have invented a new and Improved Pivot-Stool; and I do hereby declare that the following is a full, clear, and exact description thereof, which will-enable others skilled in the art to make and use the same, reference being had to the accompanying clra wing forming part of this specification.
Figure 1 represents a vertical central section of my improved pivot-stool. Fig. 2 is a top view of the supporting-post. Fig. 3 is an inverted plan View of the pivot and seat.
Similar letters of reference indicate corresponding parts.
This invention has for its object to lock the seats of pivot-stools to the supporting-posts in suchlnanner that they can freely revolve but not be spontaneously detached. The invention consists in forming a projecting lug on the upper end of the pivot and a notched inner flange on ,the upper end of the hollow post, so that when the lug has, through the notch, been brought under the flange the seat cannot be lifted off the pivot. The lug under the flange holds the I seat down and prevents it frombeing accidentally lifted off the post, allowing it, however, to be turned as freely as before.
Having thus described my invention, I claim as new and desire to secure by Letters Pat ent- The flange b of hollow case A, combined with lug d of rotary pivot O, as and for the purpose specified.
HUGH EARL, JR.
\Vitnesses:
Gno. W. hIABEI, T. B. Mosnnn.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US133310A true US133310A (en) | 1872-11-26 |
Family
ID=2202726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US133310D Expired - Lifetime US133310A (en) | Improvement in pivot-stools |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US133310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3198408A (en) * | 1964-06-19 | 1965-08-03 | Lloyd E Benner | Support for a manikin form |
| US3300108A (en) * | 1966-06-09 | 1967-01-24 | Schumer Louis | Head block for wigs |
-
0
- US US133310D patent/US133310A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3198408A (en) * | 1964-06-19 | 1965-08-03 | Lloyd E Benner | Support for a manikin form |
| US3300108A (en) * | 1966-06-09 | 1967-01-24 | Schumer Louis | Head block for wigs |
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